Advances in tunable bandgaps of piezoelectric phononic crystals

Y Wang, X Xu, L Li - Materials, 2023 - mdpi.com
Bandgaps of traditional phononic crystals (PCs) are determined using structural geometric
parameters and material properties, and they are difficult to tune in practical applications …

Static and forced vibration analysis of layered piezoelectric functionally graded structures based on element differential method

WW Jiang, XW Gao, BB Xu, J Lv - Applied Mathematics and Computation, 2023 - Elsevier
A novel strong-form numerical algorithm, piezoelectric vibration element differential method
(PVEDM), is proposed for simulating the static deflection and forced vibration of the structure …

Tunability of resonator with pre-compressed springs on thermo-magneto-mechanical coupling band gaps of locally resonant phononic crystal nanobeam with surface …

D Qian, P Zou, J Zhang, M Chen - Mechanical Systems and Signal …, 2022 - Elsevier
A locally resonant (LR) thermo-magneto-mechanical phononic crystal (PC) nanobeam by
periodically attaching “vertical spring-precompressed spring-mass” resonators onto the …

Studies of a new-style resonator to control electro-mechanical coupling bandgap of a locally resonant piezoelectric/elastic phononic crystal double-layer nonlocal …

D Qian, J Wang - Applied Mathematical Modelling, 2022 - Elsevier
The paper proposed a model of a locally resonant (LR) piezoelectric/elastic phononic crystal
(PC) nanobeam with periodically attached “spring-mass” resonator and additional spring …

Design of a multifunctional elastic wave metamaterial for detecting or hiding objects

L Ning, PH Wen - Applied Mathematical Modelling, 2024 - Elsevier
Illusion device can make an object to produce a field distribution different from its own,
offering potential applications in diverse fields. In this work, we propose a multifunctional …

Wavelet-based dual reciprocity BEM for band-structure calculations of 3D fluid/fluid and solid/solid phononic crystals

Q Wei, J Xiang, W Zhu, H Hu - Engineering Analysis with Boundary …, 2024 - Elsevier
The boundary element method (BEM) is presented to calculate the band-structure of three-
dimensional fluid/fluid and solid/solid phononic crystals first time. The frequency …

Numerical investigation of discrepancies between two-dimensional and three-dimensional acoustic metamaterials

W Jin, H Guo, P Sun, Y Wang, T Yuan - Frontiers in Materials, 2021 - frontiersin.org
In order to get insight information of the band structure of acoustic metamaterials (AMMs) in
condensed matter, periodic lattice structures are analyzed using Bloch's theorem. Typical …

基于SiPESC 平台的声子晶体能带结构分析算法研究及软件实现.

姜殿恒, 陈飙松, 张盛, 李云鹏 - Engineering Mechanics …, 2022 - search.ebscohost.com
为了快速准确得分析声子晶体的能带结构, 该文基于工程与科学计算仿真平台SiPESC,
开发了一类高效三维声子晶体能带结构分析软件. 软件针对能带结构分析过程中计算量庞大的 …

[PDF][PDF] Band gap and waveguide characteristics of petal-shaped scatterer phononic crystals

L Liao, Y Xiang, WB Wang, W Du - International Journal of …, 2023 - researchgate.net
In this study, the Bragg petal-shaped scatterer (PS) phononic crystal (PnC) model is built to
expand the width of band gap (BG). The BG characteristics of the PSPnC, square, circular …

[PDF][PDF] 光子晶体多组元缺陷态问题研究

王立群, 严佳新, 卢欣, 石丽伟, 张肖利 - Journal of Synthetic …, 2022 - researching.cn
缺陷态光子晶体可以用于制作良好的谐振器, 偏振器, 滤光器等光学器件, 具有重要的应用价值.
本文发展了光子晶体缺陷态问题的PG 有限元界面问题计算方法, 有效地处理了各种不同组元 …